Fix minor typo / copy-paste. 'cancellaction point'->'cancellation point'

include/nuttx/mqueue.h

@@ -159,7 +159,7 @@ struct task_group_s;  /* Forward reference */
  *   (mqdes).  This is an internal OS interface.  It is functionally
  *   equivalent to mq_send() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_send() for a more complete description of the
@@ -195,7 +195,7 @@ int nxmq_send(mqd_t mqdes, FAR const char *msg, size_t msglen,\
  *   nxmq_timedsend() is functionally equivalent to mq_timedsend() except
  *   that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_timedsend() for a more complete description of the
@@ -224,7 +224,7 @@ int nxmq_send(mqd_t mqdes, FAR const char *msg, size_t msglen,\
  *
  ****************************************************************************/
 
-int nxmq_timedsend(mqd_t mqdes, FAR const char *msg, size_t msglen, 
+int nxmq_timedsend(mqd_t mqdes, FAR const char *msg, size_t msglen,
                    unsigned int prio, FAR const struct timespec *abstime);
 
 /****************************************************************************
@@ -235,7 +235,7 @@ int nxmq_timedsend(mqd_t mqdes, FAR const char *msg, size_t msglen,
  *   from the message queue specified by "mqdes."  This is an internal OS
  *   interface.  It is functionally equivalent to mq_receive except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_receive() for a more complete description of the
@@ -270,7 +270,7 @@ ssize_t nxmq_receive(mqd_t mqdes, FAR char *msg, size_t msglen,
  *   nxmq_timedreceive() is an internal OS interface.  It is functionally
  *   equivalent to mq_timedreceive() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_timedreceive() for a more complete description of

include/nuttx/semaphore.h

@@ -204,7 +204,7 @@ int nxsem_destroy (FAR sem_t *sem);
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sem_wait except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:
@@ -268,7 +268,7 @@ int nxsem_trywait(FAR sem_t *sem);
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sem_wait except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:

include/nuttx/signal.h

@@ -319,7 +319,7 @@ int nxsig_kill(pid_t pid, int signo);
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sigtimedwait() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:

sched/mqueue/mq_receive.c

@@ -64,7 +64,7 @@
  *   from the message queue specified by "mqdes."  This is an internal OS
  *   interface.  It is functionally equivalent to mq_receive except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_receive() for a more complete description of the

sched/mqueue/mq_send.c

@@ -62,7 +62,7 @@
  *   (mqdes).  This is an internal OS interface.  It is functionally
  *   equivalent to mq_send() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_send() for a more complete description of the

sched/mqueue/mq_timedreceive.c

@@ -129,7 +129,7 @@ static void nxmq_rcvtimeout(int argc, wdparm_t pid)
  *   nxmq_timedreceive() is an internal OS interface.  It is functionally
  *   equivalent to mq_timedreceive() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_timedreceive() for a more complete description of

sched/mqueue/mq_timedsend.c

@@ -128,7 +128,7 @@ static void nxmq_sndtimeout(int argc, wdparm_t pid)
  *   nxmq_timedsend() is functionally equivalent to mq_timedsend() except
  *   that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *  See comments with mq_timedsend() for a more complete description of the

sched/semaphore/sem_timedwait.c

@@ -79,7 +79,7 @@
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sem_wait except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:

sched/semaphore/sem_wait.c

@@ -66,7 +66,7 @@
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sem_wait except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:

sched/signal/sig_sleep.c

@@ -62,7 +62,7 @@
  *   This is an internal OS interface.  It is functionally equivalent to
  *   the standard sleep() application interface except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - There is no check that the action of the signal is to invoke a
  *     signal-catching function or to terminate the process.
  *

sched/signal/sig_timedwait.c

@@ -218,7 +218,7 @@ void nxsig_wait_irq(FAR struct tcb_s *wtcb, int errcode)
  *   This is an internal OS interface.  It is functionally equivalent to
  *   sigtimedwait() except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  * Input Parameters:

sched/signal/sig_usleep.c

@@ -64,7 +64,7 @@
  *   This is an internal OS interface.  It is functionally equivalent to
  *   the standard nxsig_usleep() application interface except that:
  *
- *   - It is not a cancellaction point, and
+ *   - It is not a cancellation point, and
  *   - It does not modify the errno value.
  *
  *   See the description of usleep() for additional information that is not